/Engine/Source/Runtime/MovieScene/Public/Channels/MovieSceneChannelProxy.h
Make a channel handle out for the specified index and templated channel type
A handle to the supplied channel that will become nullptr when the proxy is reallocated, or nullptr if the index or channel type name are invalid.
template<typename ChannelType> [TMovieSceneChannelHandle](API\Runtime\MovieScene\Channels\TMovieSceneChannelHandle)< ChannelType > MakeHandle ( int32 Index )